GONRG-1709: update workflow service interaction (#32)

Type of change

• Bug Fix
• Feature

Does this introduce a change in the core logic?

• [YES]

Does this introduce a change in the cloud provider implementation, if so which cloud?

• AWS
• Azure
• GCP
• IBM

What is the current behavior?

• Support the last contract with Workflow Service

Have you added/updated Unit Tests and Integration Tests?

• [YES]